Adhesive coating is an important and necessary step in pressure-sensitive adhesive (PSA) construction. It’s also one of the least-discussed aspects of the PSA manufacturing process and, as of late, is becoming one of the most environmentally sustainable.
In basic terms, when making a PSA, an adhesive and a substrate are combined to form a final product; adhesive coating is required to uniformly place the adhesive onto the substrate. The adhesive is a liquid or liquid form that is formulated for varying degrees of tack, strength, toughness, flexibility and opacity. A typical carrier substrate could be paper, foil, plastic or fabric.